Augustine of Hippo on the season of Lent:
“This is indeed the time for fruitful sadness, for us to grieve over the condition of our mortality, over temptations sweeping over us, sins creeping up on us, greed of all sorts lining up against us, lusts always quarreling and agitating against good thoughts; these are the things we should be sad about.”–Sermon 254, 4.